公开(公告)号：KR820000487B1

公开(公告)日：1982-04-08

申请号：KR780001637

申请日：1978-05-30

Applicant: STANDARD OIL CO OHIO

Inventor： BREMER N

IPC: B01J27/14

Abstract: Catalysts for oxidn. of C4 hydrocarbons to maleic anhydride(I) are prepd. by reducing V(V) compds., heating the aq. product with P(V) compds. at >120oC, drying, and calcining at 250-600oC, preferably in the presence of 0. Thus, 36.37g V2O5, 22.4 g black UOx, and 50 mL H2O are ball-milled 3 h, mixed with 600 mL H2O and 12.26 g W(particle size

公开(公告)号：KR810000332B1

公开(公告)日：1981-04-20

申请号：KR780000936

申请日：1978-04-03

Applicant: STANDARD OIL CO OHIO

Inventor： BREMER N ,  MILBERGER E ,  WONG E

IPC: C07D307/60

Abstract: Maleic anhydride was prepd. by oxydation of n-butane, n-butene, 1,3-butadiene or these compd.'s mixt. with O2 at 250 - 600≦̸C vapor phase in the presence of improved catalyst which was composed of oxide of Ti and P necessarily and didn't comprised Ba. Thus, titanium dioxide 19.98 g, 85.4% phosphoric acid 28.69 g, vanadium pentoxide 84.2 g and distilled water 600 ml were mixed to make slurry. This aq. slurry was refluxed for 2 hr, evapd., dried at 110≦̸C for 12 hr, calcined at 427≦̸C for 2 hr and crushed to 10 - 30 mesh to give Til.OP1.0-Ox useful catalyst.

公开(公告)号：IN148300B

公开(公告)日：1981-01-10

申请号：IN166DE1978

申请日：1978-03-03

Applicant: STANDARD OIL CO OHIO

Inventor： BREMER N ,  MILBERGER E ,  WONG EUNICE KIE TENG

IPC: C07D307/60 ,  B01J21/06 ,  B01J27/00 ,  B01J27/18 ,  C07B61/00 ,  C07C51/215 ,  C07C51/25 ,  C07C57/145

Abstract: Vanadium-free catalysts consisting essentially of oxides of titanium and phosphorus have been found to be especially effective in the oxidation of n-butane, n-butenes and 1,3-butadiene with molecular oxygen in the vapor phase to yield maleic anhydride. The reaction with n-butane gives an especially pure product in good yield and selectivity.

公开(公告)号：BR7410607D0

公开(公告)日：1975-09-02

申请号：BR1060774

申请日：1974-12-19

Applicant: STANDARD OIL CO OHIO

Inventor： DOLHYJ S ,  MILBERGER E ,  BREMER N

IPC: C07C69/54 ,  B01J23/12 ,  B01J23/22 ,  B01J23/24 ,  B01J23/30 ,  B01J23/31 ,  B01J23/34 ,  B01J23/84 ,  B01J23/88 ,  B01J23/888 ,  B01J23/89 ,  B01J27/198 ,  B01J27/199 ,  C07B61/00 ,  C07C51/00 ,  C07C51/25 ,  C07C57/055 ,  C07C67/00 ,  C07D307/60 ,  B01J23/00 ,  B01J23/28 ,  C07C57/04

公开(公告)号：IN143815B

公开(公告)日：1978-02-11

申请号：IN2825CA1974

申请日：1974-12-21

Applicant: STANDARD OIL CO OHIO

Inventor： BREMER N ,  DOLHYJ S ,  MILBERGER E

IPC: C07C69/54 ,  B01J23/12 ,  B01J23/22 ,  B01J23/24 ,  B01J23/30 ,  B01J23/31 ,  B01J23/34 ,  B01J23/84 ,  B01J23/88 ,  B01J23/888 ,  B01J23/89 ,  B01J27/198 ,  B01J27/199 ,  C07B61/00 ,  C07C51/00 ,  C07C51/25 ,  C07C57/055 ,  C07C67/00 ,  C07D307/60 ,  B01J11/00

公开(公告)号：IN148908B

公开(公告)日：1981-07-18

申请号：IN366DE1978

申请日：1978-05-15

Applicant: STANDARD OIL CO OHIO

Inventor： BREMER N

IPC: C07D307/60 ,  B01J23/00 ,  B01J23/18 ,  B01J27/198 ,  C01B25/37 ,  C07B61/00 ,  C07C51/215 ,  C07C51/25 ,  C07D307/89 ,  C07C51/00

Abstract: Exceptionally reproducible catalysts comprising vanadium and phosphorus are obtained when an aqueous oxide slurry comprising vanadium, phosphorus and a mineral acid-free, inorganic reducing agent, which is capable of reducing the vanadium in the catalyst to a valence state below +5, is heated at an elevated temperature of at least 120 DEG C. under autogenous pressure so that substantial evaporation of the water in said oxide slurry is prevented. Especially preferred catalysts comprise vanadium, phosphorus, uranium and oxygen. Catalysts prepared in accordance with the invention are especially desirable in the oxidation of n-butane, n-butenes, 1,3-butadiene or mixture thereof.